Aston Villa and Reading have been charged by the Football Association (FA) over alleged crowd disturbances at their respective FA Cup quarter-final matches.
Villa, who booked their place in the final with a 2-1 win over Liverpool at Wembley on Sunday, are accused of failing to ensure spectators did not enter the field of play during their 2-0 win over West Brom at Villa Park.
Reading, meanwhile, face the same charge in relation to their 3-0 replay victory over Bradford City.
Steve Clarke's men were beaten 2-1 after extra time by Arsenal on Saturday, with Adam Federici conceding the softest of Alexis Sanchez goals in the first additional period.
Both clubs have until Thursday to respond to the charges.